An object with a mass of #2 kg# is hanging from an axle with a radius of #2 m#. If the wheel attached to the axle has a radius of #6 m#, how much force must be applied to the wheel to keep the object from falling?

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Answer 1 · 2017-09-26T13:45:51

The force is #F=6.53N#

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The load is #L=2gN#

The radius of the axle is #r=2m#

The radius of the wheel is #R=6m#

The effort is #=FN#

Taking moments about the center of the axle

#F*6=2g*2#

Plugging in the value of #g=9.8ms^-2#

#F=2g*2/6=6.53N#

The force is #F=6.53N#